Threaded closure for cans



V. ODQUIST.

[HREADED CLOSURE FOR CANS.

N FlL l 91 6 nPPL 1,330,088. Patented Feb. 10,1920.

mag 4 UNITED STATES PATENT OFFICE.

VICTOR ODQUIST, OF YONKERS, NEW YORK, ASSIGNOR TO AMERICAN CAN COMPANY,

I OF NEW YORK, N. Y., A CORPORATION OF NEW JERSEY.

THREADED CLOSURE FOR CANS.

Specification of Letters Patent.

Patented Feb. 10, 1920.

Application filed February 21, 1916. Serial No. 79,491.

To all whom it may concern:

Be it known that I, VICTOR OD UIsr, a citizen of the United States, residing in Yonkers, in the'county of l/Vestchester and State of New York, have invented a new and useful Improvement in Threaded Closures for Cans, of which the following is a specification.

This invention .relates in general to threaded container closures and has for its purpose, broadly, the provision of such a container wherein the cover will have a new and improved connection with the body.

The principal object of this. invention is the provision of a sheet metal container which will permit the cover to be merely placed over the end of'the body and given a slight turning movement to lock it 1n place.

Other objects and advantages of the invention will be apparent as it is better understood from the following description when considered in connection with the accompanying drawing illustrating a preferred embodiment thereof.

Referring to the drawings,

Figure 1 is a partial side elevation of a container embodying my invention;

' Figs. 2 and 3 are similar views showing the cover and body separated;

Fig. 4 is a section taken vertically through the container shown in Fig. 1;

Fig. 5 is a top plan view of the body with the cover removed;

Fig. 6 is a bottom plan view of the cover;

and

Figs. 7 and 8 are partial enlarged detail sections showing the method of constructing the body of the container embodied in the other figures.

Heretofore it has been diflicult to draw a portion of a bead out of the wall of a nozzle or body of a container, because, there being no longitudinal yielding of the walls, the

tin plate would break or crack where it was drawn out forcibly from said wall, but by forming a continuous bead all around the said Walls, alternate portions of said bead extending respectively inwardly and outwardly, the said walls will yield longitudi-,

nally so as to afford the metal for the bead without undue strain upon the metal. Also by the old method it was not practicable to form an engageable bead having a flat under surface, and said surfaces were formed with an inclined or a rounded contour on which the engagingelements of the cover had a tendency to slip or spring outward. According to my present invention, where the bead is formed substantially continuous all around the vessel having alternate outwardly and inwardly extending portions, it is possible to flatten said beads, or especially the under side of the bead portions which are to be engaged by the corresponding elements of the cover, without straining, cracking or breaking the metal, because the walls above and below the portions so beaded would yield longitudinally toward each other to accommodate such flattening, and the beads so flattened which are engaged by the cover elements will hold the cover or cap securely.

For the purpose of illustrating my invention I have shown on the drawing, a. can or container comprising a tin body A and a tin cover B. It will, however, be manifest that the container may be made from other material. The body A is provided, in the present instance, with a single series of cirso cumferentially extending outwardly disposed depressions or bead parts 11 spaced a regular distance from each other, which constitute one part (male) of a threaded connection between the cover and body. Each of these bead parts is flattened to give it a flat under face. These bead parts are all preferably inclined similarly at an appropriate pitch;

The cover B is provided with a downwardly extending flange 12 adapted to pass over the end of the body and this flange has an internal diameter, in the present instance permitting it to pass'over the bead parts 11. It iscut away at its bottom to form spaced lips 13 bent inwardly at 14:, each lip being depressed and adapted to be inserted between two adjacent bead or thread parts 11 when the cover is placed on the container, these lips constituting the other part (female) of the threaded connection above referred to. The depth of this flange is such that when so positioned the end of the lips or thread parts 13 will be disposed on a level with or slightly beneath the more elevated ends of the bead or thread parts 11. A partial turn when in such position will carry the lips or thread parts 13 under the bead or thread parts 11 into threaded engagement therewith, tightly looking the cover in place. In order that the bead or threaded parts 11 may be formed without straining the metal and without danger of tearing it, I provide a bead which extends all the way around the can, alternate parts of it, however, extending inwardly and outwardly, those 14, extending outwardly, being for the purpose of forming the bead or thread parts 11, and the parts 15, extending inwardly, occupying the circumferential space between said parts 11 and each connecting the lower end I) of one part ll-with the higher end a of the next adjacent. With the body thus formed the parts 11 and 15 are mashed down so that their upper sides 16 are in contact with their lower sides 17, as seen in Fig; 8. When so constructed, substantially the only strain to which the material has been subjected is incidental to the formation of the bead parts,

which tin plate and many other materials are amply able to sustain.

I prefer to make the bead-engaging lips 13 of the cover horizontal, as shown, thereby simplifying the process of manufacture, and

these lips will naturally yield slightl as they are applied under the beads 11 of the body so as to become more or less parallel with the under surfaw of the latter after the cover has been screwed into tightly closed position. I

It is thought that the invention and many of its attendant advantages will be understood from the foregoing description, and it will be apparent that various changes may be made in the form, construction and arrangement of the parts without departing from the spirit and scope of the invention or sacrificing any of its material advantages, the form hereinbefore described being merel a preferred embodiment thereof.

l. A container body having portions of its walls bent to form circumferentially extending zig-zag inclined parts pressed. alternately inwardly and outwardly to provide inclined elements for looking a cover in place.

2. A container comprising a body having an encircling bead extending alternately inwardly and outwardly of said body and a cover havinga flange provided with an inward extension 4 interrupted circumferentially and adapted to pass said bead on said body and to engage therebeneath upon partial rotation of the body with respect to said cover.

3. container body having a substantially continuous circumferential bead al ternately extending inwardly and outwardly.

4. A container comprising a body having an outwardl extending bead interrupted circumferentlally and flattened, the parts of the body between said outwardly extending and flattened parts being bent inwardly, and a cover having elements adapted to engage beneath the flattened bead-portions.

5. A container comprising a body provided with a circumferentially extending bead, parts of said bead-being inclined similarly and alternating parts being inclined differently and bent to the inner side of the body, and a cover formed to engage beneath the high ends of similarly inclined parts and to slide along them toward the lower end to lock the cover in place. i

6. A container comprising a body having a circumferentially extended bead beneath its open end, having inwardly projecting parts inclined in one direction and outwardly projecting parts inclined in another direction, and a cover having a body embracing flange interrupted at its lower edge and bent inwardly to pass between the outwardly projecting parts of said bead and to engage therebeneath upon partial rotatio of said cover.

Signed in the presence of two subscribing witnesses. I

VIOTOR ODQUIST.

Witnesses:

C. W. GRAHAM, D. F. MENNIS. 

